Lattice shrinkage by incorporation of recombinant Starmaker-like protein within bioinspired calcium carbonate crystals.

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ID: 3590
2019
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Ranked #42 of 117 articles by views in Chemistry (Weinheim an der Bergstrasse, Germany)

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Abstract
The biological mediation of mineral formation (biomineralization) is realized through diverse organic macromolecules that guide this process in a spatial and temporal manner. Although the role of these molecules in biomineralization is being gradually revealed, the molecular basis of their regulatory function is still poorly understood. In this study, we revealed the incorporation and distribution of the model intrinsically disordered Starmaker-like (Stm-l) protein, which is active in fish otoliths biomineralization, within calcium carbonate crystals. The Stm-l promotes crystal nucleation and anisotropic tailoring of crystal morphology. Intracrystalline incorporation of Stm-l protein unexpectedly results in shrinkage (and not expansion as commonly described in biomineral and bioinspired crystals) of the crystal lattice volume, that is here described for the first time in bioinspired mineralization. A ring pattern was observed in 48h grown crystals, composed of a protein-enriched region flanked by protein-depleted regions. It can be explained as a result of the Ostwald-like ripening process and intrinsic properties of Stm-l, and bears some analogy to the daily growth layers of the otolith.
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rycka2019latticechemistry Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Różycka, Mirosława;Coronado, Ismael;Brach, Katarzyna;Olesiak-Bańska, Joanna;Samoć, Marek;Zarębski, Mirosław;Dobrucki, Jerzy;Ptak, Maciej;Weber, Eva;Polishchuk, Iryna;Pokroy, Boaz;Stolarski, Jarosław;Ożyhar, Andrzej;
Journal Chemistry (Weinheim an der Bergstrasse, Germany)
Year 2019
DOI
10.1002/chem.201902157
URL
Keywords Keywords not found

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